I had a section a few days ago and the baby isn't latching on - we have tried pretty much everything and had a lot of advice but no-one seems able to get him to feed 'normally'. I have a good milk supply so I'm expressing by hand at the moment but want to use an electric pump. We got a Tommee Tippee but it doesn't seem to work - no suction. Any tips on fixing it, or on the best electric breast pumps?